package mobi.demos.workflowenginedemoapp;

import mobi.workflowengine.core.WorkflowStatus;
import mobi.workflowengine.core.WorkflowTask;
import mobi.workflowengine.core.WorkflowTaskEndCallback;
import mobi.workflowengine.core.WorkflowTaskManager;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.Toast;
import android.os.Build;

public class MainDemoActivity extends ActionBarActivity {
	
	static Button btnCalcDemo;
	
	static int a = 10;
	static int b = 20;
	static int result = 0;
	
	static class multiply extends WorkflowTask
	{
		public multiply(WorkflowTaskEndCallback onEnd) {
			super(onEnd);
		}

		@Override
		public void start(WorkflowTask pParentWorkflowTask) {
			super.start(pParentWorkflowTask);
			result += a*b;
			onSuccessfulEnd();
		}
	};
	
	static class add extends WorkflowTask
	{
		public add(WorkflowTaskEndCallback onEnd) {
			super(onEnd);
		}

		@Override
		public void start(WorkflowTask pParentWorkflowTask) {
			super.start(pParentWorkflowTask);
			result += a+b;
			onSuccessfulEnd();
		}
	};
	

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main_demo);

		if (savedInstanceState == null) {
			getSupportFragmentManager().beginTransaction()
					.add(R.id.container, new PlaceholderFragment()).commit();
		}
		
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {

		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main_demo, menu);
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		// Handle action bar item clicks here. The action bar will
		// automatically handle clicks on the Home/Up button, so long
		// as you specify a parent activity in AndroidManifest.xml.
		int id = item.getItemId();
		if (id == R.id.action_settings) {
			return true;
		}
		return super.onOptionsItemSelected(item);
	}

	/**
	 * A placeholder fragment containing a simple view.
	 */
	public static class PlaceholderFragment extends Fragment {

		public PlaceholderFragment() {
		}

		@Override
		public View onCreateView(LayoutInflater inflater, ViewGroup container,
				Bundle savedInstanceState) {
			final View rootView = inflater.inflate(R.layout.fragment_main_demo,
					container, false);
			
			btnCalcDemo = (Button)rootView.findViewById(R.id.btnDemoCalculation);
			
			btnCalcDemo.setOnClickListener( new OnClickListener() {
				
				@Override
				public void onClick(View v) {
					
					mobi.workflowengine.core.WorkflowTaskManager.ShowWorkflowMessage(rootView.getContext(), "Started Workflow");

					mobi.workflowengine.core.WorkflowTaskManager.MainWorkflow.jumpStartNewWorkflow(
							
							new add( new WorkflowTaskEndCallback() {
								
								@Override
								public void doThis(WorkflowStatus status) {
									
									if(status==WorkflowStatus.SuccessfulEnd)
									{
										mobi.workflowengine.core.WorkflowTaskManager.MainWorkflow.jumpStartNewWorkflow(
												
												new multiply(new WorkflowTaskEndCallback() {
													
													@Override
													public void doThis(WorkflowStatus status) {
														
														if(status==WorkflowStatus.SuccessfulEnd)
														{
															mobi.workflowengine.core.WorkflowTaskManager.AddToWorkflowMessage(rootView.getContext(), "\r\nDone...");
															
															mobi.workflowengine.core.WorkflowTaskManager.CloseWorkflowMessage(rootView.getContext(), 3);
															
															Toast.makeText(rootView.getContext() , "Result = "+result, Toast.LENGTH_LONG).show();
														}
														
													}
												})
												
												);
									}
								}
							})
							
							);
					
					
				}
			} );
			
			return rootView;
		}
	}

}
